RV-8 won't start

[Ed_Wischmeyer]

The other day it cranked just find but wouldn't start and I ran down the half-sized battery trying. Recharged the battery and next day, started fine. This morning, wouldn't start:
O-320, 9:1 pistons
P-mags
No primer system
57 degrees this morning.

????

Ed

[SmilingJack]

- Check your P lead wires to make sure they are still connected correctly and not grounded.

- Do you Pmags still get 12v power during startup?


Just a couple things I would check....

[Ironflight]

Check the lights on the P-Mag andsee what they are doing - if nothign else, they'll tell you if they have power. Older P-Mags might need a software update (they have added some robustness).